<!DOCTYPE html>
<html lang="zh-CN">
<head>
  <meta charset="UTF-8">
  <title>活动列表</title>
  <link rel="stylesheet" href="https://cdn.bootcdn.net/ajax/libs/bootstrap/4.5.2/css/bootstrap.min.css">
  <link rel="stylesheet" href="./css/base.css">
  <style>
    body {
      font-family: Arial, sans-serif;
      background-color: #f2f2f2;
    }
    .activity-list {
      padding:0 30px;
    }
    #activities{
      height: calc(100vh - 134px);
      overflow-y: auto;
      padding-right: 10px;
    }
    .activity-item {
      display: flex;
      align-items: center;
      justify-content: space-between;
      background-color: #f7f7f7;
      padding: 24px;
      border-radius: 4px;
      overflow: hidden;
      margin-bottom: 10px;
      border-radius: 8px;
      padding-bottom: 12px;
    }
    .activity-info{
      width: calc(100% - 120px);
    }
    .activity-info h4{
      width: 100%;
      font-weight: 600;
      font-size: 15px;
      color: #000000;
      margin-bottom: 4px;
    }
    .activity-info p{
      font-weight: 400;
      font-size: 14px;
      color: #666666;
      margin: 0;
      line-height: 28px;
    }
    .active a{
      font-weight: 400;
      font-size: 15px;
      color: red;
      margin-bottom: 0;
      display: block;
      width: 250px;
    }
    .inactive a{
      font-weight: 400;
      font-size: 15px;
      color: gray;
      margin-bottom: 0;
      display: block;
      width: 250px;
    }
    .pagination {
      display: flex;
      justify-content: flex-end;
      margin-top: 18px;
      padding-right: 16px;
    }
    .pagination button {
      margin: 0 5px; /* 按钮之间的间距保持不变 */
      border-radius: 5px; /* 设置圆角为20像素，可以根据需要调整 */
      border: 1px solid #007bff;
      background-color: #fff;
      padding: 0px 8px; /* 可以添加一些内边距，使按钮看起来更饱满 */
      cursor: pointer; /* 将鼠标光标改为指针形状，提升用户体验 */
      font-size: 13px;
    }
    .pagination span{
      margin: 0 10px;
      font-size: 14px;
    }
    .pagination input{
      width: 80px;
      text-align: center;
    }
    .activity-list h2 {
      font-weight: 600;
      font-size: 18px;
      color: #000000;
      height: 70px;
      display: flex;
      align-items: center;
      margin-bottom: 0;
    }
  </style>
</head>
<body style="background-color: white">
<div class="activity-list">
  <h2>活动列表</h2>
  <div id="activities">
    <!-- 活动列表将动态插入这里 -->
  </div>
  <div class="pagination">
    <button class="btn-outline-primary" onclick="fetchActivities(1)">首页</button>
    <button class="btn-outline-primary" onclick="previousPage()">上一页</button>
    <span>第 <input type="number" id="pageInput" min="1" value="1" /> 页</span>
    <button class="btn-outline-primary" onclick="nextPage()">下一页</button>
    <button class="btn-outline-primary" onclick="fetchActivities(totalPages)">尾页</button>
  </div>
</div>

<script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
<script src="./js/toastr.min.js"></script>
<script>
  var currentPage = 1;
  var pageSize = 10;
  var totalPages;
  var userToken = localStorage.getItem("user_token");

  // 发送AJAX请求的函数
  function fetchActivities(page) {
    // 如果页码小于1，则重置为1
    if (page < 1) {
      page = 1;
    }
    // 更新当前页码
    currentPage = page;
    // 构建要发送的数据对象
    var dataToSend = {
      currentPage: currentPage,
      pageSize: pageSize
    };
    // 发送AJAX请求
    $.ajax({
      url: '/activity/find-list',
      type: 'GET',
      data: dataToSend, // 将分页参数作为请求数据发送
      dataType: 'json',
      headers: {
        // jwt
        "user_token":userToken
      },
      success: function(result) {
        if (result.code != 200) {
          alert("查询活动列表失败！" + result.msg);
        } else {
          var activities = result.data.records; // 假设返回的数据中活动列表字段为 'record'
          var activitiesHtml = '';
          var listContainer = document.getElementById('activities');
          // 在添加新内容前，先清空listContainer
          listContainer.innerHTML = '';
          activities.forEach(function(activity) {
            var url = 'draw.html?activityName='+ encodeURIComponent(activity.activityName)
                    +'&activityId=' + encodeURIComponent(activity.activityId)
                    +'&valid=' + encodeURIComponent(activity.valid);
            var linkTextActive = `<a href="${url}" target="_blank">活动进行中，去抽奖</a>`;
            var linkTextInactive = `<a href="${url}" target="_blank">活动已完成，查看中奖名单</a>`;
            var validClass = activity.valid ? 'active' : 'inactive';
            var link = activity.valid ? linkTextActive : linkTextInactive;
            activitiesHtml += `
                      <div class="activity-item">
                        <div class="activity-info">
                          <h4>${activity.activityName}</h4>
                          <p>${activity.description}</p>
                        </div>
                        <div class="${validClass}">
                          <p>${link}</p>
                        </div>
                      </div>
                    `;
          });
          $('#activities').html(activitiesHtml);
          // 更新分页控件的总页数
          totalPages = Math.ceil(result.data.total / pageSize);
          // 更新输入框的值
          $('#pageInput').val(currentPage);
        } // else end
      },
      error:function(err){
        console.log(err);
        if(err!=null && err.status==401){
          alert("用户未登录, 即将跳转到登录页!");
          // 跳转登录页
          window.location.href = "/blogin.html";
          window.parent.location.href = "/blogin.html";//让父页面一起跳转
        }
      }
    });
  }


  function previousPage() {
    if (currentPage > 1) {
      fetchActivities(currentPage - 1);
    } else {
      alert("已经是第一页");
    }
  }

  function nextPage() {
    if (currentPage < totalPages) {
      fetchActivities(currentPage + 1);
    } else {
      alert("已经是最后一页");
    }
  }

  $(document).ready(function() {
    fetchActivities(1);
  });

  // 绑定输入框回车事件
  $('#pageInput').on('keypress', function(e) {
    if (e.key === 'Enter') {
      var page = parseInt(this.value);
      if(page > totalPages){
        page = totalPages
        $('#pageInput').val(totalPages);
      }
      if (!isNaN(page) && page >= 1 && page <= totalPages) {
        fetchActivities(page);
      }
    }
  });

</script>
</body>
</html>